Highway to Hell Slot Review by Nolimit City

Cascades

When symbols participate in a winning combination, they explode. This causes the symbols above to fall, while the new ones appear instead. Additionally, the game's other mechanics, like Enhancer Cells, are connected with this option.

Winning symbols explode after paying their values, providing new combinations

Enhancer Cells

The lowest row has locked cells on reels 2 to 4. Each time a winning combination explodes, it opens a single position, starting from left to right. Symbols from above can't fall on these cells.

The four locked cells in the lowest row are unlocked with winning cascades one by one

Avasplit Effect

After a winning symbol explosion, the Avasplit Effect can randomly apply to some of the remaining symbols. It increases their size by one, splitting and doubling them.

Randomly, winning cascades can activate the Avasplit Effect that splits some remaining symbols, increasing their size by one

Wilds & xNudge Wilds

The game has regular and xNudge Wilds. When only a part of the xNudge symbol is in view, it starts nudging up or down to be fully visible, increasing the multiplier by 1x for each moved position. When the nudged over symbol has a multiplier, these values are combined. We liked that the initial multiplier can be higher when the symbol comes from the Hellevator Booster. Yet, we should note that this nudge won't affect the locked Enhancer Cells.

You can experience both regular and xNudge Wilds. When the latter aren't fully in view, they nudge and increase the symbol's multiplier

Demon

The Demon symbol randomly removes several symbols from the grid when they are standard size one. After this, the creature turns into a random regular symbol, getting a multiplier equal to the number of removed symbols. If there are winning combinations, they pay first, after which, the feature works. Sometimes, the Demon doesn't remove any symbols and just transforms into a regular one with a 1x multiplier.

On any spin, the Demon symbol can randomly land, removing random symbols from the grid and bringing a multiplier equal to their number

xWays

The xWays symbols transform into 2 to 4 regular paying symbols of the same value as a Wild, increasing the number of ways to win. When there are several ones, they will reveal the same value.

There are xWays symbols that transform into a group of regular paying symbols of the same value or Wilds

xSplit

The feature behind xSplit doubles the symbols of the entire reel and splits them accordingly. When this happens, the xSplit symbol itself turns into a Wild.

The presence of xSplit splits symbols of the entire reel, turning into a Wild

Hell Spins

Upon three Scatters on the reels, you'll enter a bonus round with eight Hell Spins. Alternatively, the feature can be triggered by the Hellavator Booster, which remains on the reels during the entire round. The Demon symbol can't remove this Booster, but it's removed when being a part of a winning combination that explodes, after which, a new symbol lands instead. The xNudge Wild can increase its multiplier for a current spin.

It's great that Scatters are collected in the corresponding meter during the entire bonus round. Thus, collecting three Scatters triggers +2 extra spins, adding the Hellevator Booster for the next spin. After this, the meter resets, so you'll have more chances of retriggering the bonus feature.

You can receive eight Hell Spins when three Scatters are anywhere in view. The feature is connected with Hellavator Booster and can be retriggered

Nolimit Boosters & God Mode

An alternative way to try out the slot's bonus features is to purchase them for a certain value or increase the chances due to specific guaranteed options. It's nice that there are options for any bankroll, though we believe the highest cost is much above the market average, so players should be careful with it. 

• xBet Booster: You can optionally choose this option, paying 2.40x the bet to get one bonus symbol guaranteed on reel 1.
• Bonus Hunt Booster: When paying 15x, the spin guarantees blank symbols, Scatters, or Hellevator Boosters.
• God Mode: This feature is the most expensive yet has the largest potential. Each spin with this option costs 3,800x, but the Enhancer position may feature the Max Win symbol paying 20,066x at once.

The slot has three Bonus Buy variations, costing 2.40x to 3,800x

Extra Spin

Once the Hell Spins are over, you'll be prompted to buy an extra spin. We liked this option since it allows players to keep the Hellavator multipliers. However, the value of the feature depends on the current progress. When the cost equals the win of the previous spin or lower, the feature is presented, and players don't pay for it.

Players are prompted to buy an extra round after Hell Spin to keep existing multipliers during a new spin